Navigation Links
UC Riverside psychologist explores human perception, finds 'wow factor'

Faces tell the stories in UC Riverside Professor Larry Rosenblum's ecological listening lab, as volunteer test subjects show that they can "read" unheard speech -- not just from lips, but from the simple movements of dots placed on lips, teeth and tongue.

They can also recognize people's voices just from seeing their faces, and vice versa, and seem to be able to distinguish among a variety of rooms on campus just from their echoes.

"We get people ready for a test and tell them what we want them to do, and a lot of them think there's absolutely no way they'll be able to do that," said Rosenblum, whose field is perceptual psychology. "Some are very surprised when it turns out that they can."

Rosenblum has given test subjects quite a few such surprises. For example, participants in his work have shown that they can determine the locations of objects by listening to echoes as noise bounces off them. Other test subjects have used room echoes to figure out where they are on campus -- blindfolded.

Rosenblum's research explores speech, faces and hearing from an ecological perspective. Ecological psychologists study the ways humans perceive and act in natural environments. The emphasis is on identifying the information available to people's senses, rather than the mental processes by which they interpret it, he said.

"One thing these projects all have in common is the 'wow factor,'" Rosenblum said of his work in audio speech, visual speech and face recognition.Test subjects routinely glean more information than they expect from faces."We all read lips to some degree, even when we don't know we're doing it," Rosenblum said. "We also read faces. The ways people's faces move as they speak adds to what we comprehend."

The ambient sound in any room also offers more information than people might expect, Rosenblum said. One experiment asked subjects to listen to recorded sounds and try to recognize where on campus the recordings were m ade.

"We picked different places -- a men's bathroom, the old gym, a walk-in closet -- and it turns out that people are terrific at it," Rosenblum said.In another experiment, Rosenblum and his team showed 18 UC Riverside undergraduates three shapes they would be attempting to identify -- a triangle, a disc and a square cut from sound-insulating foam board covered with black tape.

The undergrads also saw an array of eight horn-style loudspeakers that the shapes would block, and were told that the speakers would make a white-noise sound. Blindfolded, they were asked to identify which shape was positioned in front of the loudspeakers.

"Our results show that listeners can identify the shape of sound-occluding objects at better than chance levels, with some listeners displaying near-perfect performance," Rosenblum said.

That research, he said, seeks a better understanding of how human hearing is affected by silent objects. His projects are all motivated by theoretical questions rather than a quest for a particular application, Rosenblum said, but real-world considerations are important.

"We discuss practical applications in papers so engineers can use them in the work they do, whether it's designing computer software or rehabilitation programs for the blind or the deaf."

Rosenblum has taught at UCR since 1989. In addition to his scientific work, he holds the post of chair in teaching excellence for the College of Humanities, Arts, and Social Sciences. His duties include offering workshops for faculty members, mentoring at least two assistant professors each year and providing teaching consultation.


'"/>

Source:University of California - Riverside


Related biology news :

1. ‘Blue Brain?project explores thought at molecular level
2. New study explores beetle species with two forms of females
3. Avian flu modeled on supercomputer, explores vaccine and isolation options for thwarting a pandemic
4. Williams College biologist explores photosynthetic apparatus
5. Florida Tech explores microalgae for biofuel
6. Novel technology detects human DNA mutations
7. Current human embryonic stem cell lines contaminated UCSD/Salk team finds
8. UWs Rosetta software to unlock secrets of many human proteins
9. Genome-wide mouse study yields link to human leukemia
10. Found: Missing sequence of the human Y chromosome
11. Study finds more than one-third of human genome regulated by RNA
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:11/15/2016)... , Nov. 15, 2016  Synthetic Biologics, Inc. ... therapeutics focused on the gut microbiome, today announced ... 25,000,000 shares of its common stock and warrants ... at a price to the public of $1.00 ... Synthetic Biologics from the offering, excluding the proceeds, ...
(Date:6/22/2016)... June 22, 2016  The American College of Medical Genetics ... Executive Magazine as one of the fastest-growing trade shows ... at the Bellagio in Las Vegas . ... percentage of growth in each of the following categories: net ... and number of attendees. The 2015 ACMG Annual Meeting was ...
(Date:6/16/2016)... June 16, 2016 The ... expected to reach USD 1.83 billion by 2024, ... Research, Inc. Technological proliferation and increasing demand in ... expected to drive the market growth. ... The development of advanced multimodal techniques for ...
Breaking Biology News(10 mins):
(Date:12/6/2016)... 6, 2016 According to a new market ... (Polymer, Glass, Silicon), Application (Genomics, Proteomics, Capillary Electrophoresis, POC, Clinical, Environmental, ... global market is projected to reach USD 8.78 Billion by 2021 ... during the forecast period (2016 to 2021). ... ...
(Date:12/6/2016)... , Dec. 6, 2016  SRI International has ... million from the National Institutes of Health,s National ... Division of AIDS (NIAID-DAIDS) to support the manufacturing ... pre-exposure (PreP) agents. Under the seven-year contract, SRI ... development services for candidate HIV-prevention products that emerge ...
(Date:12/6/2016)... ... 2016 , ... RoviSys, a leading independent provider of comprehensive ... the opening of their new office building today. Located at 480 Green Oaks ... 200 employees focused on providing sales, engineering, and support services to customers in ...
(Date:12/5/2016)... Dec 5, 2016 Research and Markets ... - Technologies, Markets and Companies" to their offering. ... , , ... discovery using various -omics technologies such as proteomics and metabolomics. Molecular ... tests are also based on biomarker. Currently the most ...
Breaking Biology Technology: